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#ifndef __PCIDEVICE_H
#define __PCIDEVICE_H
#include "types.h" // u32
#include "list.h" // hlist_node
struct pci_device {
u16 bdf;
u8 rootbus;
struct hlist_node node;
struct pci_device *parent;
// Configuration space device information
u16 vendor, device;
u16 class;
u8 prog_if, revision;
u8 header_type;
u8 secondary_bus;
u8 irq;
// Local information on device.
int have_driver;
};
extern struct hlist_head PCIDevices;
extern int MaxPCIBus;
static inline u32 pci_classprog(struct pci_device *pci) {
return (pci->class << 8) | pci->prog_if;
}
#define foreachpci(PCI) \
hlist_for_each_entry(PCI, &PCIDevices, node)
#define PCI_ANY_ID (~0)
struct pci_device_id {
u32 vendid;
u32 devid;
u32 class;
u32 class_mask;
void (*func)(struct pci_device *pci, void *arg);
};
#define PCI_DEVICE(vendor_id, device_id, init_func) \
{ \
.vendid = (vendor_id), \
.devid = (device_id), \
.class = PCI_ANY_ID, \
.class_mask = 0, \
.func = (init_func) \
}
#define PCI_DEVICE_CLASS(vendor_id, device_id, class_code, init_func) \
{ \
.vendid = (vendor_id), \
.devid = (device_id), \
.class = (class_code), \
.class_mask = ~0, \
.func = (init_func) \
}
#define PCI_DEVICE_END \
{ \
.vendid = 0, \
}
void pci_probe_devices(void);
struct pci_device *pci_find_device(u16 vendid, u16 devid);
struct pci_device *pci_find_class(u16 classid);
int pci_init_device(const struct pci_device_id *ids
, struct pci_device *pci, void *arg);
struct pci_device *pci_find_init_device(const struct pci_device_id *ids
, void *arg);
void pci_enable_busmaster(struct pci_device *pci);
u16 pci_enable_iobar(struct pci_device *pci, u32 addr);
void *pci_enable_membar(struct pci_device *pci, u32 addr);
#endif // pcidevice.h
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